upgrade: adopt V8.34.1 (multi-image banner carousel + spec-table source modes)

Plain overlay (33 items, same-source lineage, zero patch replay).
Theme suites 35/35; full run 453 passed + 10 known Windows env fails
(suspect-module rerun confirms identical failure set).
Live: container 8.34.1-dev.1; hesupipe home leftover industrial-preset
blocks cleared via studio draft+publish flow — home now renders pure
trade-pro template (sf-section/Chinese blocks = 0).

Co-Authored-By: Claude Code <noreply@anthropic.com>

scripts/v834_visual_preview.py

@@ -0,0 +1,29 @@
+"""Reproducible offline preview assembled from actual V8.34 server rendering."""
+import html,json
+from pathlib import Path
+from app.blueprints import new_block,render_blocks
+ROOT=Path(__file__).resolve().parents[1]
+OUT=ROOT/'examples/V8_34_主题Banner与产品卡片_真实渲染交互预览.html'
+css=(ROOT/'app/static/blocks.css').read_text()
+styles={k:((ROOT/f'themes/{k}/blocks.css').read_text() if (ROOT/f'themes/{k}/blocks.css').exists() else '') for k in ('automotive','industrial')}
+entries={
+ 'automotive':[{'route':f'/product/model-{i}/','title':v,'type':'product','cover':'','summary':'出口车型展示 · 可按实际车型数据替换','meta_json':'{}'} for i,v in enumerate(['SUV 车型 A','新能源车型 B','皮卡车型 C','商务车型 D','紧凑车型 E','乘用车型 F'],1)],
+ 'industrial':[{'route':f'/product/pipe-{i}/','title':v,'type':'product','cover':'','summary':'管道产品展示 · 可查看技术参数','meta_json':'{}'} for i,v in enumerate(['HDPE 给水管','PVC-U 排水管','双壁波纹管','钢丝网骨架管','土工布','土工膜'],1)]
+}
+views={}
+for theme in entries:
+ views[theme]={}
+ for banner in ('split','image-first','centered'):
+  for cards in ('standard','compact','showcase'):
+   blocks=[new_block('hero',{'title': '中国汽车 · 全球交付' if theme=='automotive' else '专业管道 · 工程应用', 'subtitle': 'GLOBAL AUTOMOTIVE' if theme=='automotive' else 'PIPE SYSTEM SOLUTIONS','description':'这是实际服务端渲染的内容模块，点击选项可比较布局。','image':'','layout_variant':banner,'image_fit':'contain','button':'查看产品','href':'/product/'}),new_block('collection',{'title':'精选车型' if theme=='automotive' else '主要产品','subtitle':'PRODUCT SELECTION','source':'product','limit':6,'columns':3,'card_style':cards,'image_fit':'contain'})]
+   views[theme][banner+'-'+cards]=render_blocks(blocks,{'name':'DEMO'},{'route':'/','type':'home'},entries[theme])
+# escape script closure
+payload=json.dumps({'views':views,'styles':styles,'blocks':css},ensure_ascii=False).replace('</','<\\/')
+base=f'''<!doctype html><html lang="zh-CN"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1"><title>SiteForge V8.34 · 真正生成的主题布局</title>
+<style>*{{box-sizing:border-box}}body{{margin:0;background:#edf1f6;color:#24344b;font-family:system-ui,"Microsoft YaHei",sans-serif}}button,select{{font:inherit}}.toolbar{{padding:16px 20px;background:white;border-bottom:1px solid #dfe6ed;display:flex;gap:15px;align-items:center;flex-wrap:wrap}}.toolbar strong{{font-size:17px}}.toolbar small{{display:block;color:#75869a;font-size:11px}}.controls{{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-left:auto}}select{{background:#f7fafc;border:1px solid #c9d6e2;border-radius:8px;padding:9px;color:#2c485e;max-width:185px}}.size button{{padding:9px;border:1px solid #ccd7e2;background:white;border-radius:6px;cursor:pointer}}.size button[aria-pressed=true]{{background:#205a8a;color:#fff}}#canvas{{display:block;width:100%;height:calc(100vh - 100px);min-height:520px;margin:auto;border:0;background:white;transition:width .2s}}@media(max-width:680px){{.toolbar{{padding:12px;gap:10px}}.controls{{margin-left:0}}#canvas{{height:calc(100vh - 155px)}}}}</style></head><body>
+<div class="toolbar"><div><strong>SiteForge V8.34 · Banner 与产品卡片</strong><small>来自实际服务端区块渲染 · 仅演示布局，不连接业务后台</small></div><div class="controls"><select id="theme" aria-label="主题"><option value="automotive">汽车主题</option><option value="industrial">工业建材主题</option></select><select id="banner" aria-label="Banner 布局"><option value="split">Banner · 文字左</option><option value="image-first">Banner · 图片左</option><option value="centered">Banner · 标题居中</option></select><select id="cards" aria-label="卡片形式"><option value="standard">卡片 · 标准</option><option value="compact">卡片 · 紧凑</option><option value="showcase">卡片 · 图片优先</option></select><div class="size"><button data-width="100%" aria-pressed="true">电脑</button><button data-width="820px" aria-pressed="false">平板</button><button data-width="390px" aria-pressed="false">手机</button></div></div></div>
+<iframe id="canvas" title="主题页面真实渲染" sandbox="allow-scripts"></iframe><script type="application/json" id="data">{payload}</script><script>
+const data=JSON.parse(document.getElementById('data').textContent), frame=document.getElementById('canvas');
+function paint(){{const t=document.getElementById('theme').value,key=document.getElementById('banner').value+'-'+document.getElementById('cards').value;const page='<html><head><meta name="viewport" content="width=device-width, initial-scale=1"><style>'+data.blocks+'</style><style>'+data.styles[t]+'</style><style>body{{margin:0;font-family:system-ui,"Microsoft YaHei",sans-serif;background:white;color:#20354a}}.sf-hero-abstract{{background:linear-gradient(140deg,#eff4f8,#d5e3ed);border-radius:12px}}.sf-item{{height:100%}}</style></head><body><div class="sf-theme-'+t+'"><main class="pro-custom-content">'+data.views[t][key]+'</main></div></body></html>';frame.srcdoc=page;}}
+['theme','banner','cards'].forEach(id=>document.getElementById(id).addEventListener('change',paint));document.querySelectorAll('[data-width]').forEach(b=>b.addEventListener('click',()=>{{frame.style.width=b.dataset.width;document.querySelectorAll('[data-width]').forEach(x=>x.setAttribute('aria-pressed',String(x===b)));}}));paint();</script></body></html>'''
+OUT.write_text(base,encoding='utf-8');print('CREATED',OUT,OUT.stat().st_size)